Shade-supporting lamp-socket.



R. B. BENJAMIN. SHADE SUPPQ'ORTING LAMP SOCKET.

APPLICATION FILED MAR. I. 1912.

l,206,084. Patented Nov. 28; I916.

, 2 SHEETS-SHEET 1- R, B. BENJAMIN. SHADE SUPPORTING LAMP SOCKET.

APPLICATlON FILED MAR. 1| I912.

Patented N 0V. 28, 1916.

/ 2 SHEETS-SHEET 2.

REUBEN n. BENJAMIN, on'onroncd'rnnmois, nssrsnon r nnivaaivimnnnc'rmo MFG. COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION 0F ILLINOIS.

SHADE-SUPPORTING LAMP-SOCKET.

Specification of Letters Patent. I

' Patented Nov. as, 1916.

. Application nee March 1, 1912. Serial No. 681,002.

. To aZZ whom it may concern:

section taken through Be it known that I, REUBEN B. BENJA- nnv, a citizen of the United States, residing at Chicago, in the county of- Cook and State of Illinois, have invented new and useful Improvements in Shade-Supporting LampSockets, of which the following is a full, clear, concise, and exact description, refercncebeing had to the accompanying drawing, forming a part ot'this specification.

My invention pertains to electric-lampreceiving sockets, and-shade supporting de vices for use in connection therewith; and my invention particularly relates to electriclamp sockets of the kind which are known in the art as pendant sockets; 5.12., sockets which are intended to be supported from a hanging cord.

Among others, it is an object of my invention; to simplify, and improve upon generally, the construction of pendant sockets.

It is a further object of my invention to provide an electric-lamp socket to which a shade support may be attached in varying positions, according. to the nature of the lamp employed in the socket. And it is a still further object of my invention to provide a shade support, .which may be safely and conveniently employed in connection with sockets of varying sizes and characters,

and to improve upon the construction of shade supporting devices generally.

A pendant socket and shade supporting device, invention are described in the following specification and s'hownin the accompany ing drawings. it is to be understood, how: ever, that the invention may be embodied in other constructions than t at shown, within the scope of the appen ed claims, and that, althou porting device which I have described has particular advantages when used in connecti on with theform ot' pendant socket which I have shown, nevertheless, each of these devices has important uses in other connections.

In the drawings: Figure 1 is a vertical the socket andshade supporting device constructed in accordance with my invention, the section being taken on the line 1-'1 of Fig. 2; Fig. 2 is a plan of the same on an enlarged scale, the terminal-protecting and cord-gripping bushing constructed in accordance with my h the form of. shade supbeing however, the binding terminals; vation of the same; a portion of the shade.

.Fig. 7 is a perspectivedetail view of one of removed in order to display Fig. 3 is a side ele being broken away so as to display the e the shade supporting stirrups; and Fig. 8

is a perspective view of the top portion of the shade.

Referring now to the drawings, and particularly to Figs. lAthereof, 10: indicates an insulating body member having formed in the lower end thereof a lamp-base receiving chamber 11, the bottom of this chamber being formed with a central boss 12. A threaded lamp receiving contact 13 is mounted in the chamber 11, and is secured in position by means of screws 14 and 15,

passing vertically through the body member 10. Of these screws, the screw 1 L passes sownwardly through the body member 10 and enters the threaded contact 13, and the screw 15 passes upward through the body member 10, and enters a binding plate 16 which carries a binding screw 17 lhe center 'lamp-terminalengaging-contact 18 lies upon the boss 12 and is providedwith a lug '19,'which enters a" small recess 20, formed for thatpurpose in; the bottom of the chamber 11. A screw 21 passes upwardly through the lug 19 of the center contact-18 and throughthe body member 10, entering a binding plate 22, which, like the binding plate 16, lies in a shitable depression in the top part of the body member. The binding plate 22 is providedwith a binding screw 23. It will e seen from the above that current led to the binding screw 17 will pass through the screw 15, to. the threaded contact 13, and thence through the lamp to the center contact 18, and, through the'screw 21. back to the binding screw 23.

The upper end of the body member 10 is provided with an annular internally screw threaded shoulder 24, which is adapted to receive an externally screw threaded insulating bushing 25, preferably formed of hard rubber or some similar material; The bushing 25 is provided with a central aperture may be brought to the binding screws 17 body. member,

and 23, respectively. The top end of the body member 10 is further provided with a central boss or projection 29 of frustoconical shape, the top edge 0 which cooperates with the bottom edge of the aper- .ture 26 to form a clamping device for gripping the lead wires and from being detached from minals.

In connecnng up the socket, the is passed over the lead wires, and the ends of the latter are then secured beneath the binding screws 17 and 23. When this has been done, the bushing 25 is secured into the annular shoulder 24. It will be seen that the insertion of the bushing 25 into the annular shoulder 24 will result in the lead wires being firmly gripped. between the lower edge of the opening 26 of the bushing and the upper edge of the boss 29 of the the bushing 25 thus serving at once as a cap for protecting the binding terminals and as a clamping device for the leading in wires. The effect of the construction is that the weight of the lamp, the shade and'the socket itself, is taken by the bushing 25, which is well able to withstand the strain, and the binding terminals are relieved from such weight. The bushing 25 is. hollowed out at 30, so as to provide suifipreventing them the binding tercient room for the lead wires to be brought body member 10 at its upper end, so as to form a secondto the binding terminals, and at the same time, allow sufficient depth of thebushing to permit of a firm threaded engagement.

The bushing and the shoulder 24 are thus permitted to be of reasonably small dimensions, whereby thesocket is of minimum weight and of neat appearance.

At its lower end, the body member 10 is formed with an outwardly projecting shoulder 31, which is adapted to sustain the shade supporting device in such a position that the shade will be properly located with respect to a particular variety of lamp-in, the construction shown, a 100 watt lamp. The is also reduced somewhat,

sh(mlder.32 adapted to support the shade supporting device (see dotted lines when a smaller lamp is being employed. This construction permits the shade to be properly located with respect to the lamp, regardless of whether a large or a small lamp is employed, which is an advantage of considerable importance. r

The shade holder consists of two arcuate bands 33 each of which is somewhat less than a semi-circle. The length of the bands 33 is such that their ends will be spaced apart whenthe bands are fitted around the body-member 10; and each of the bands has its ends bent out so as to form lugs 34. In

-conjunction with these bands, stirrups 35 are in the ends 36 of bushing nuts 41 may then be lhe beads 42 are Fig. 3), 4

employed; the upturned ends 36 of which extend upward through suitably positioned slots 37 formed in an inturned flange 38, which is provided at'the upper end of the shade 39. Clamping screws 40 pass through apertures in the'lugs 34 of the bands 33 and the stirrups 35, these screws being burred over at their ends to prevent withdrawal. Threaded upon the clamping screws 46, are nuts 41 arranged so as to clamp the adjacent lugs 34 between them and the heads of the clamping screws 40. It will be seen that by tightening the nuts 41 upon the clamping screws 40, the lugs 34 will be moved toward each other and the bands 33 will consequently be tightened upon the body member. When it is desired to use a small lamp in the socket, instead of the lamp shown, the nuts 41 are loosened, whereby the bands 33 become loose. been done, the shadesupporting device and shade may be moved upward upon the body member 10 to engage the again tightened to clamp the shade supporting device and shade 'in the new position. In order to permit the shade supporting device to be employed in. connection with sockets of other kinds, as, for instance, in connection with metallic sockets of the kind in which. a bead is previded adjacent the outer end of the socket,\I form, in each of the bands 33, an arc-shaped hollow bead 42. formed upon a curve, which 18 a part of a circle drawn about a center which is intermediate the inner ends of the lugs 34, the curvature of the beads 42 bein therefore of a greater convexity than that of the bands 33. Then theshade supporting -device is employed in connection with'a socket of the kind in which a bead is provided adjacent the outer end, the hollow head 42 of the shade supporting device fits over the bead of the socket, and, when the bands 33 are clamped together, the shade supporting device becomes firmly secured to the socket thereby.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is:

1'. A pendant electric lamp socket coin- When this has shoulder 32. The I when said cap is' loo so as to be safely supported 2. A pendant electric lamp socket coinprising, in combination, a one-piece integral insulating base having an internally screw-threaded shoulder at its rear side and having an internally threaded lamp-engaging socket in its front side, lamp-terminalengaging contacts mounted on the front side of said base, binding terminals mounted on the rear side of said base,- and a one-piece screw-threaded insulating bushing adapted to screw into the shoulder of said base, so as to cover said binding terminals, said base and said bushing being formed so as to grip the lead wires between them when said bush-- mg is screwed into said shoulder, said bushing having a single opening therethrough for the leads from said terminals.

3. A pendant electric lamp socket compris ng, in combination, a one-piece integral insulating base having a projection at the rear side thereof and having an internally threaded lalnp-engagingisocket in its front side, lamp terminal engaging contacts mounted on the front side of said base in said socket, binding terminals mounted on the rear "side of said base, and a one-piece cap having screw-threaded connection with said base and covering said binding terminals, said cap having a single aperture therein for the passage of lead wires therethrough,"sucl1 aperture being located with respect to the projection of said base so that the lead wires will be clamped between the edge of such aperture and said projection.

i. A pendant electric lamp socket comprising, in combination, a one-piece integral insulating base having an internally screwthreaded shoulder at its rear side, a lampeng'aging socketat its front side and also having a projection at its rear side, lampterminal-engaging contacts mounted .on the front side of said base, binding terminals mounted on the rear side ofsaid base, and a one-piece screw-threaded bushing adapted to be screwed into said shoulder so as to cover said binding terminals, said bushing aperture being having a single aperture for permitting the passage of lead wires therethrough, such positioned with respect to said projection so that the lead wires will be clamped between. said projection and the edge of such aperture.

A pendant electric lamp socket comprising, in combination, a one piece insulatmg base having an internally screw-threaol-- ed shoulder at the rear side thereof and also having a fruste-conical projection at the rear side thereof, vbinding terminals mounted onthe rear side of said base, and a one piece screw-threaded bushing'adapted to be screwed into said shoulder so as to cover said binding terminals, said bushing having aperture for permitting the passageof lead wires therethrough, such aperture being positioned'with respect to said projee tion so that the lead. wires willbe clamped between said projection and the edge of such aperture.

r 6. A pendant electric lamp socket comprising, in combination, a one-piece insulating base having an internally screw-threaded shoulder at therear side thereof and also having a projection at the rear side thereof,

binding terminals mounted on the rear side of said base, and a one-piece screw-threaded insulating bushing adapted to be screwed into said shoulder and having an aperture for the passageof lead wires therethrough, such aperture being located with respect to said projection so that the lead wires will be clamped between said projection and the edge of such aperture, and said bushing being hollowed out at its lower side, for the purposes set forth.

In witness whereof, I have hereunto subscribed my name in the presence of two witnesses.

Witnesses:

Meant RnYnoLns, (3. ELKANE.

ilhproiement in Shade-Supporting L specifieatipn requiring correctidnes the Word Patent Office.

Signed and sealed this 2 3d [SEAL] day of January, A. D

084, granted N ovember 28,

amp-S0ckets," an error appears in the pl inted F. W. H. CLAY, Acting Commissioner of Patents,

' of Chicago, Illinois, for an 

